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Radda [10]
3 years ago
12

Which organism has a nerve net? A fish B hydra C flatworm D sponge

Chemistry
2 answers:
pentagon [3]3 years ago
5 0
The answer is B hydra
amid [387]3 years ago
4 0
The answer to this question is hydra

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Determine the number of moles of H in each sample
MissTica

C. The number of moles of H in 0.109 mole of N₂H₄ is 0.436 mole

D. The number of moles of H in 34 moles of C₁₀H₂₂ is 748 moles

<h3>C. How to determine the number of mole of H in 0.109 mole of N₂H₄</h3>

1 mole of N₂H₄ contains 4 moles of H

Therefore,

0.109 mole of N₂H₄ will contain = 0.109 × 4 = 0.436 mole of H

<h3>D. How to determine the number of mole of H in 34 mole of C₁₀H₂₂</h3>

1 mole of C₁₀H₂₂ contains 22 moles of H

Therefore,

34 mole of C₁₀H₂₂ will contain = 34 × 22 = 748 mole of H

Learn more about mole:

brainly.com/question/13314627

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5 0
2 years ago
Find the frequency of a wave with a period of 0.5 seconds.
Goryan [66]

Answer:

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Explanation:

3 0
3 years ago
What is the pH of a 0.028M solution (pH= -log(M))<br><br> A) 3.56<br> B) 2.88<br> C) 1.55<br> D) 1
kupik [55]

Answer:

1.55

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3 years ago
Which of the following pairs of atoms represent isotopes?
gladu [14]
Isotopes have same atomic number but different atomic mass number.
Hence option B is correct.

Hope this helps you!
5 0
4 years ago
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Which electron subshell is being filled for the rare earth series of elements on the periodic table?.
Strike441 [17]

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